We propose a model of amphiphilic AB copolymer which possesses low tendency toward intermolecular aggregation in selective solvent and high adsorption ability on solventphobic surfaces. The primary structure of the copolymer has elements of linear triblock copolymer. It contains solventphobic (A) and solventphilic (B) end-blocks and regularly alternating AB multiblock copolymer as a middle block which is surface-active. This block is localized at the core-corona interface of the micelle reducing the aggregation number. Kinetics of adsorption of the designed copolymer on planar solventphobic surface is compared with that of equivalent diblock copolymer. It is shown that even strong attraction of the molecules to the surface cannot destroy diblock copolymer micelles (at least during simulation time), whereas designed macromolecules form dense planar brush on the surface for a short enough time.
We propose a model of molecular motor based on diblock copolymer strongly adsorbed on a patterned surface. One of the blocks of the copolymer is modeled as field responsive. It is shown that time‐periodic collapse‐readsorption of the responsive block leads to the directed motion (reptation) of the molecule along the “track” provided by the surface pattern. Both the Langevin dynamics (LD) technique of computer simulation for the bead‐spring model and numerical solution of the Newton equations of a simplified (toy) model of the copolymer are used. The physical reason of directionality of the motion is shown to be an anisotropy of the friction of the molecule with the surface.magnified image
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.